Problem Symptoms Table
HINT:
- Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
- Inspect the fuses and relays related to this system before inspecting the suspected areas below.
Symptom | Suspected Area | See page |
|---|---|---|
Front power seat does not operate with front power seat switch |
Proceed to "Front Power Seat does not Operate with Front Power Seat Switch" |
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Power seat position is not memorized |
Proceed to "Power Seat Position is not Memorized" |
|
Power seat does not return to memorized position |
Front power seat switch LH |
- |
Main body ECU (multiplex network body ECU) |
- |
|
Lumbar support function does not operate |
Power seat switch assembly |
|
Separate type front seatback spring assembly LH (Lumbar support motor) |
|
|
Harness or connector |
- |
Symptom | Suspected Area | See page |
|---|---|---|
All functions do not operate |
Front power seat switch RH |
|
Harness or connector |
- |
|
Only slide function does not operate |
Front power seat switch RH |
|
Separate type front seat cushion spring assembly (Slide motor) |
|
|
Harness or connector |
- |
|
Only reclining function does not operate |
Front power seat switch RH |
|
Separate type front seatback spring assembly RH (Reclining motor) |
|
|
Harness or connector |
- |
Test yourself
A quick Toyota 4Runner quiz: every answer comes with an explanation and a link to the manual page.